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Senior Software Engineer (Java)

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South Geeks

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Job Description:

We are seeking a Senior Software Engineer (Java) who combines strong backend engineering skills with a deep interest in data quality and large-scale data correction. This is a highly technical position focused on investigating data issues, debugging complex systems, and writing substantial Java code to repair and improve massive datasets. You’ll work in an iterative, fast-moving environment, diagnosing issues across distributed systems, building safe and repeatable repair workflows, and ensuring data correctness across millions of records.

Job Responsibility:

  • Investigate, diagnose, and resolve data-quality issues in large-scale backend systems
  • Design and implement Java-based repair and correction pipelines for high-volume datasets
  • Debug and fix issues in existing Java codebases supporting distributed systems
  • Build safe, idempotent jobs to correct data without introducing regressions
  • Leverage AWS services (such as S3, SQS, and Lambda) to support queue-driven and batch workflows
  • Analyze system behavior related to performance, concurrency, and memory usage
  • Clearly communicate findings, risks, and recommendations to technical and non-technical stakeholders

Requirements:

  • 6+ years of professional experience developing Java in large-scale backend systems
  • Strong debugging, triage, and data analysis skills
  • Experience working with distributed systems and high-volume processing pipelines
  • Hands-on experience with AWS, including services such as S3, SQS, and Lambda
  • Solid understanding of performance optimization, concurrency, and memory-efficient design patterns
  • Ability to design reliable, repeatable data repair workflows
  • Comfort operating in ambiguous, evolving problem spaces and deriving practical solutions
  • Strong communication skills, with the ability to summarize complex technical findings clearly

Nice to have:

  • Experience working with genealogical, historical, or highly interrelated datasets
  • Familiarity with queue-driven architectures and event-based processing
  • Experience improving data integrity in legacy or long-lived systems
What we offer:
  • Long-term projects
  • 100% remote work
  • Payment in USD
  • Paid Time Off (PTO)
  • Work-from-home & training reimbursement
  • English lessons
  • Technical training
  • Career coaching

Additional Information:

Job Posted:
February 21, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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